import java.util.Scanner;

public class TestDemo {
    public static void main(String[] args) {
        Scanner scanner=new Scanner(System.in);
        int a = scanner.nextInt();
        if (a%2==0){
            System.out.println("这是一个偶数");
        }else{
            System.out.println("这是一个奇数");
        }

    }
    public static void main7(String[] args) {
        Scanner scanner =new Scanner(System.in);
        int b=scanner.nextInt();
        System.out.println("a="+b);
    }
    public static void main6(String[] args) {
        int a =1;
        if(true? false:true){
            System.out.println(a);
        }else if(false? false:true){
            System.out.println(++a);

        }else{
            System.out.println(--a);
        }
    }
    public static void main5(String[] args) {
        Scanner input = new Scanner(System.in);
//        int num = input.nextInt();
//        String num1 = input.next();
//        System.out.println(num1);
        String num2 = input.nextLine();
        System.out.println(num2);

    }
    public static void main4(String[] args) {
        System.out.println(true&&true);
        System.out.println(true&&false||true);
        System.out.println(true&&true||false);
    }
    public static void main3(String[] args) {
        Scanner input = new Scanner(System.in);
        System.out.println(input);
        int a=1;
        int b=2;
        System.out.println(a<b);
        System.out.println(a>b);
        System.out.println(a==b);
        System.out.println(a<=b);
        System.out.println(a>=b);

    }
    public static void main2(String[] args) {
        short s1=10;
//        s1=(short)(s1+1);
        s1+=1;
    }
    public static void main1(String[] args) {

//        int a=10;
//        System.out.println(Integer.MIN_VALUE);
//        char ar='a';
        System.out.println(Character.MAX_RADIX);
        System.out.println("\\\"你好\\\"");
        System.out.println("\"nihao\"");

    }
}

























